You're certainly right up to now. On the December diagrams, Stockport is still shown as supplying the two existing ECS to New Mills, and the stock for the 0605 Stockport-Liverpool. The fourth duty doesn't look as certain.
There are going to be plenty of changes yet, though - apart from two exceptions, no trains are showing between Bolton and Preston, other than those which couldn't possibly go diesel, and the TPE to Glasgow and Edinburgh are still shown as operating via Wigan North Western.
The ECS of the late Blackpool to Hazel Grove train is still shown as running into Stockport CMD, even though the service train is itself not shown. It could go electric and still run into Stockport, of course, but that would result in an imbalance, i.e. more electric duties finishing at Stockport than starting. So there must be changes to come.